Round #618 is going to be held soon. I suggest making the round's name interesting, i.e. Codeforces Round Phi. Number 618, is the first three digits after the decimal point of number phi=(sqrt(5)-1)/2, which is also known as the 'golden section'. And it will be very memorable. See [contest:57068] and [contest:4446] and [contest:4457] as an example.